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Method for realizing energy perception medium access control protocol

A medium access control and protocol implementation technology, applied in the field of communication, can solve problems such as energy constraints of network nodes, and achieve the effects of improving efficiency, saving energy, and reducing conflicts

Inactive Publication Date: 2008-10-22
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to solve the problem of limited energy of wireless sensor network nodes and prolong the life of nodes, the present invention provides an energy-aware medium access control protocol implementation method

Method used

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  • Method for realizing energy perception medium access control protocol
  • Method for realizing energy perception medium access control protocol
  • Method for realizing energy perception medium access control protocol

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Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: According to the basic structure of the sensor network, the final data is forwarded to the aggregation node for unified data processing, and the network can be clustered and partitioned for processing. Refer to attached figure 1 . First, divide a large number of sensor networks into clusters of different sizes as a whole, and each cluster contains a powerful cluster head node to manage the data within the jurisdiction. The table is still very large. Further, each cluster is further divided into some hexagonal cells. The size of the area is related to the wireless transmission range of the node. Here, it is represented by a simple hexagon. Each cell is composed of its own independent Number, and the nodes are equipped with GPS devices, so that each node can know the cell it belongs to according to the known cell boundaries, assuming that the upper layer protocol can track the current location of the node and notify the change of the cell where the node is ...

Embodiment 2

[0032] Embodiment 2: The protocol method determines the sender and receiver of the data time slot by reservation, and the process of reserving the time slot includes the following steps:

[0033] Step 1: In the random access phase, each node with different numbers in the unit cell registers the link information belonging to the node in its own independent time slot;

[0034] Step 2: Link information is recorded in the conflict-free vector table maintained by all nodes in the area;

[0035] Step 3: Add and register the link across the cell in the conflict-free vector table to provide a transmission path for the information across the new cell;

[0036] Step 4: When the frame control time slot arrives, if the node has a packet to send, it needs to send an application broadcast, and set the communication link in the corresponding cell;

[0037] Step 5: At the end of the frame control time slot, all nodes select a certain conflict-free link set according to the agreed scheme, and...

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Abstract

A method for energy sense medium access control protocol implementation is used in power restriction and low service rate wireless sensor network. It is an improved high efficiency energy-saving TDMA system based MAC protocol method under DEANA protocol basic. It demands node automatically entering sleeping state in inactive time for saving energy and demands working in clustering partitioning topology structure, temperament density, and light network load condition, distributing different sub-time slot to different node in one frame for satisfying channel continuously transmitting different grouping requirement. Said invention can effectively save system node power consumption, raising network operating efficiency, relatively reducing node state conversion times, in favor of prolonging wireless sensor network service life.

Description

technical field [0001] The invention relates to a method for realizing an energy-aware medium access control protocol, which belongs to the field of communication. Background technique [0002] Wireless sensor network is a wireless ad hoc network with limited power, low service rate and low mobility. Its application range has a greater expansion than the Ad Hoc network, such as in military, environmental monitoring and forecasting, health care, building status monitoring, complex mechanical control, urban transportation, space exploration, large workshops and warehouse management and other fields. The number and distribution density of sensor nodes far exceed the number of nodes in the previous Ad Hoc network, and most of the nodes do not move as fast as Ad Hoc nodes. Most of the changes in the topology are caused by node failure or failure. The energy, storage and computing power of sensor nodes are limited. The sensor network mainly uses broadcast communication, that is,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/18H04L29/06H04L47/6275
CPCY02B60/50
Inventor 朱刚侯碧翀
Owner BEIJING JIAOTONG UNIV
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